Tabatha Christian, left, dressed as the anime character Pikachu, walked with Richard Latrell, dressed as a Mindcraft Captain America, through the MomoCon animation and gaming convention in Atlanta on May 29, 2015. The convention drew fans of Japanese animation, known also as anime, as well as American animation, comics, video and tabletop gaming. David GoldmanAP

Tabatha Christian, left, dressed as the anime character Pikachu, walked with Richard Latrell, dressed as a Mindcraft Captain America, through the MomoCon animation and gaming convention in Atlanta on May 29, 2015. The convention drew fans of Japanese animation, known also as anime, as well as American animation, comics, video and tabletop gaming. David GoldmanAP

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The development of very, very fancy video games has resulted in a pattern of compulsive use of these games that may serve as a substitute for drug-taking. I’m speculating, but it needs to be tested.

Nora Volkow, director of the National Institute on Drug Abuse

“The development of very, very fancy video games has resulted in a pattern of compulsive use of these games that may serve as a substitute for drug-taking,” Volkow said in an interview. “I’m speculating, but it needs to be tested.”

The study, released on Tuesday, found that most teens preferred marijuana over tobacco and e-cigarettes in 2016.

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Marijuana’s effects can vary from person to person, and scientists are not quite sure what to make of the common distinction users and growers make between cannabis sativa and cannabis indica. Credit: New York Times

And teens who lived in states where medical pot is legal were more likely to use marijuana edibles, researchers said.

The study, released on Tuesday, found that most teens preferred marijuana over tobacco and e-cigarettes in 2016. And teens who lived in states where medical pot is legal were more likely to use marijuana edibles.

Overall, marijuana use dipped among 8th- and 10th-graders in the last year and remained stable among seniors, the study found.

Six percent of the seniors said they use marijuana every day, while nearly one in four said they had used the drug in the last month.

By comparison, 1.8 percent of high school seniors said they smoked a half-pack of cigarettes or more every day, while 10.5 percent they had had smoked tobacco in the last month.

And e-cigarettes were slightly more popular with high school seniors, with 12.5 saying they had used electronic vaporizers in the past month.

The survey found a decline in the use of alcohol by teens, as well. Among seniors, 37.3 percent said they had been drunk at least once, down from the peak high of 53.2 percent reported in 2001.

Volkow said it came as a surprise that pot use had declined among 8th- and 10th-graders, especially since more states have voted to legalize either medical or recreational marijuana.

But she said it was no time to give up on prevention efforts.

“When 6 percent of high school seniors are using marijuana daily and new synthetics are continually flooding the illegal marketplace, we cannot be complacent,” she said.

Among seniors who lived in states that allowed medical pot and who reported using marijuana in the past month, 40.2 percent had consumed marijuana in food.

That compared to 28.1 percent of high school seniors who used edibles in states without medical marijuana laws.

45,473The number of U.S. students from 48 states who participated in the 2016 survey.

The study, the 2016 Monitoring the Future annual survey, focused on 45,473 students in 372 public and private schools across the country.

Lloyd Johnston, the survey’s lead investigators from the University of Michigan’s Institute for Social Research, called the declining use of drugs among teens “encouraging and important.”

“But we need to remember that future cohorts of young people entering adolescence also will need to know why using drugs is not a smart choice,” he said. “Otherwise we risk having another resurgence of use as was seen in the ’90s.”

Officials said the survey, which has been taken each year since 1975, included a representative sample from all 48 U.S. contiguous states. As a result, students from Alaska and Hawaii were not included.